Hi @gvbarnes, as I’ve just mentioned in another thread, you could try my Papers to DEVONthink script. This should index the PDF(s) of all paper(s) selected in your Papers library in DEVONthink, and set the name to the paper’s citekey and title. The script will also transfer many other properties.
Note that if you’re using Mojave and above, you may need to copy the script’s script code into a new ScriptEditor app window, and run it from there.